The Prevalence of Visual Acuity Impairment among School Children at Arada Subcity Primary Schools in Addis Ababa, Ethiopia

Table 5

Frequency of visual acuity with the worse eye.

VA of the worse eye		ICD-9, 10-CM categories	WHO	Age group (in years)			Total	% out of total ()	% ()
				5–8	9–12	13–16
VAI	6/60	Sever VI	Low vision	—	1	—	1	0.3%	1.1%
	6/36	Moderate VI		1	2	—	3	0.8%
	6/18	Mild VI	Normal vision	1	2	2	5	1.3%	98.9%
	6/12	Mild V I		4	4	5	13	3.4%
Total				6	9	7	22	5.8%
Normal	6/6	Normal		75	158	123	356	94.2%
Grand total				81	167	130	378	100%	100%

VI: visual impairment; VA: visual acuity; VAI: visual acuity impairment.